Vulnerability Description
`fulgur` converts untrusted HTML/CSS into PDF, commonly on a server that processes input supplied by many tenants. In versions prior to 0.19.0, a body-direct child whose CSS-resolved height greatly exceeds the page height was sliced into one fragment per page with no upper bound. This is fixed in version 0.19.0. A `MAX_PAGES` cap bounds the slice loop — halting it even for a `+inf` height — and non-finite layout heights are sanitized so they can no longer drive the loop. As a workaround, validate or constrain untrusted CSS (in particular `height` / `vh` on body-level elements) before passing HTML to fulgur.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/fulgur-rs/fulgur/pull/501
- https://github.com/fulgur-rs/fulgur/security/advisories/GHSA-4rf6-qx84-q9fv
- https://rustsec.org/advisories/RUSTSEC-2026-0200.html
FAQ
What is CVE-2026-68537?
CVE-2026-68537 is a vulnerability with a CVSS score of 7.5 (HIGH). `fulgur` converts untrusted HTML/CSS into PDF, commonly on a server that processes input supplied by many tenants. In versions prior to 0.19.0, a body-direct child whose CSS-resolved height greatly ex...
How severe is CVE-2026-68537?
CVE-2026-68537 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-68537?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.